Heney a



(No Model.)

H. A. DAVIDSON.

MANUFACTURE OF LINSEBD 0IL No. 279,860. Patented June 19,1883.

& Y j 4 Witnesses. Inventor 6 Henry A.Da,vidson. M @jmlw zg uv PETERS.Phntn-Lilhogrzphsr. Washinginn. 0. c4

UNITED STATES PATENT OFFICE.

HENRY A. DAVIDSON, OF BUFFALO, NEW YORK.

MANUFACTURE OF LINSEE D-OIL.

SPECIFICATION forming part Of Letters Patent NO. 279,860, dated June 19,1883.

Application filed August 12 1882. (No model.) I

To a. whom it may concern:

Be it known that I, HENRY A. DAVIDSON, a citizen of the United States,residing in Buffalo, in the county of Erie and State of New York, haveinvented certain new and useful Improvements in the Manufacture ofLinseed- Oil, of which the fdllowing is a specification.

The object of this invention is to provide the means for the manufactureof linseed-oil, whereby more oil can be made from a given quantity ofseed or oil-meal and of a better quality than that made in the ordinaryway, all of which will be more clearly hereinafter shown by reference tothe accompanying drawings, in which Figure l is a front elevation of theapparatus, 'a portion being in section to show the in terior of thesame; and Fig. 2 represents a side elevation, in section, through lineas as, Fig. 1.

A represents the usual hydraulic press by which the required pressure isgiven to the oil meal or cake, all of which is of well-knownconstruction for pressing out linseed-oil, and requires no furtherdescription here.

B is a series of steam-pipes constructed and connected in any well-knownway for giving the required heat.

O is a portion of the room floor in which the presses are located.

The steam heating apparatus 13 and the presses are surrounded by acasing, D, having a door, E, directly opposite each press. This casingis made of wood, sheet-iron,- or other suitable material, and inclosesthe press or a number of presses, so as to separate or insulate themfrom the room in which they are placed.

In the manufacture of linseed-oil I have found that more oil and of aclearer and better quality can be got from a given pressure and quantityof seed or oil-meal by having the presses in which the oil is pressedkept at atemperature of from to 140 Fahrenheit, about or beingpreferable. If the room in which the workmen are employed is kept at sohigh a temperature, it would be impossible for them to work toadvantage. The peculiar odor of the heated oil and the heat have a verydepressing effect upon them, and render it impossible for any one towork very long under such contioned and the usual pressure, the oil iiows out more freely, as it becomes more fluid under the heat, andcarries out less of the impurities in the meal with it.

I claim as my invention 1. In an oil-press for pressing out linseedoil,the combination therewith of a casing, D, provided with a door, E, and asuitable heat ing device or coils, B, arranged within the casing D,outside of the press, and provided with a stop-cock for regulating theamount of steam admitted, so that the required temperature may bemaintained within said casing while the press is in operation, asdescribed.

2. The herein-described process of manufacturing linseed-oi1, consistingin pressing it out from the ground seed, under a temperature of from 110to 140 Fahrenheit, by means substantially as specified.

HENRY A. DAVIDSON.

Witnesses: I

R. N. SANGSTER, JAMES SAnGsrER.

